The Detective Boys are at a shrine dedicated to Shōin Yoshida, a famous figure of the Meiji Restoration. While there, they witness two men attempt to wrestle a book from a woman named Kimiko Kobayakawa. After the two men flee, Kobayakawa explains that the two men are after her grandpa's diary which contains the location of a treasure which could buy a country.
Casts:
Minami Takayama, Kappei Yamaguchi, Wakana Yamazaki, Akira Kamiya, Rikiya Koyama, Megumi Hayashibara, Kenichi Ogata, Yukiko Iwai, Wataru Takagi, Ikue Otani, Chafurin